Best Vf for K2 HDS mod

[Lolaralph]

I'm putting a K2 into my HDS, any advice as to which Vf bin would work the best, I have E,F and N bins available, the actual Vf varies from 2.2-2.4 for the E and F to 4.2-4.4 for the N. Will this effect how my mod turns out or don't I have to worry about it due to the electronics in the HDS, any advice is appreciated, thanks